1955108671 has 2 divisors, whose sum is σ = 1955108672. Its totient is φ = 1955108670.

The previous prime is 1955108593. The next prime is 1955108677. The reversal of 1955108671 is 1768015591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1955108671 - 2⁹ = 1955108159 is a prime.

It is a super-4 number, since 4×1955108671⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1955108677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977554335 + 977554336.

It is an arithmetic number, because the mean of its divisors is an integer number (977554336).

Almost surely, 2^1955108671 is an apocalyptic number.

1955108671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1955108671 is an equidigital number, since it uses as much as digits as its factorization.

1955108671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 43.

The square root of 1955108671 is about 44216.6108040858. The cubic root of 1955108671 is about 1250.4230399603.

The spelling of 1955108671 in words is "one billion, nine hundred fifty-five million, one hundred eight thousand, six hundred seventy-one".